She studied all about Bridges and about mathematics, and she went to the bridge daily.
她研究了所有关于桥梁的技术和数学，并且每天都到桥那里去。
2
By building models of resources optimization in the practical bridge construction, the paper gives mathematics formula to evaluate optimization model using the same parameter.
建立了实际桥梁施工网络计划资源优化模型，提出用统一的参数来评价优化模型的数学公式。
3
The vector is one of the most basic concepts in modern mathematics, it has a "dual status" - "Algebra form" and "geometry form". It is a bridge to link up the contents of geometry.